Home / 512,986.23-707,899.10-283,531.77

Finding the Fourth Proportional to 512,986.23, 707,899.10 and 283,531.77

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Solution

The fourth proportional to 512,986.23, 707,899.10 and 283,531.77 is: 391,261.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,986.23 : 707,899.10 = 283,531.77 : x
  2. Step 2: Convert to fraction form
    512,986.23/707,899.10 = 283,531.77/x
  3. Step 3: Cross multiply
    512,986.23x = 707,899.10 × 283,531.77
  4. Step 4: Simplify right side
    512,986.23x = 200,711,883,386.75
  5. Step 5: Solve for x
    x = 200,711,883,386.75/512,986.23
  6. Step 6: Final answer
    x = 391,261.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.